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' (fie Mod el.) 2 Sheets-Sheet 1.

S. HEIMANN. GLOBE FOR ELECTRIC ARG LIGHTS.

No. 565,269. 7 Patented Aug. 4, 1896;

Hon mew 6 26 277. 6W fig 2 Sheets-Sheet 2.

(No Model.) I

S. HEIMANN.

GLOBE FOR ELECTRIC ARC LIGHTS. I No. 565,269. Patented Aug. 4, 1896.

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7- Nunms PETERS can mm'uumu. WASNINGYON n c UNITED STATES PATENT OFFICE.

SALOMON HEIMANN, OF NEW YORK, N. Y., ASSIGNOR TO LUCAS TOCI-I, OF SAMEPLACE.

GLOBE FOR ELECTRIC-ARC LIGHTS.

SPECIFICATION forming part of Letters Patent No. 565,269, dated August4, 1896.

Application filed February 29, 1896. Serial No. 581,253. (No model.)

To aZZ whom it may concern.-

Be it known that I, SALOMON HEIMANN, a citizen of Germany, and aresident of the city of New York, in the county of New York and State ofNew York, have invented certain new and useful Improvements in Globesfor Electric-'Arc Lights, of which the following is a specification.

The object of my invention is to provide a new and improved globe forelectric lamps, which globe fully protects the electric are fromatmospheric influences, ditl'uses the light uniformly, and increases thebrilliancy of the same.

I 5 In the accompanying drawings, forming a part of this specificationand in which like letters of reference indicate like parts in all theviews, Figure 1 is an elevation of an electric-arc lamp provided with myimproved 2o globe, parts being in section. Fig. 2 is an enlarged detailhorizontal sectional view of the globe-cylinder and carbon. Fig. 3 is avertical transverse sectional view on the line 3 3 of Fig. 2. Fig. 4 isan enlarged detail vertical transverse sectional View through the bottompart of the globe.

The frame of the lamp is of the usual con struction and has two sidebars A, connected by the bottom cross-piece A and the top cross- 0 pieceA which bottom cross-piece carries the bottom-carbon clamp 13, the topcross-piece carrying the casing B containing the mechanism forregulating the upper carbon.

The globe O is cylindrical in shape and is 3 5 composed of twosemicylindrical sections 0,

hinged to swing toward and from each other.

Each section has a metal frame composed of a top and bottom semicircularU -shaped piece D, which top and bottom pieces D are connected at theirends by vertical metal strips D, of which one set are hinged to eachother by hinges d and the other set is provided with a spring-catch d,as shown in Fig. 2, so as to permit of opening and closing the 5 globe.A series of glass tubes E are placed in two concentric rows in verticalposition between said top and bottom piece D, which tubes are filledwith water or any other suitable liquid and sealed at both ends, thesaid tubes being firmly secured and cemented at both ends in theU-shaped semicircular pieces D, so as to form a cylindrical wall ofdouble thickness of glass tubes. A metal ring F fits snugly in thebottom circular frame formed of the bottom pieces D, and in the cen- 5 5tral opening of the same the lower end of a glass chimney G is secured,so as to be exactly in the center longitudinally of the cylindricalglobe. The lower end of the chimney is closed by a centrally-aperturedplug H, in which two spring-clamps J are secured, which are pressedtoward each other by springs K, arranged in recesses in said plug.

The cylindrical globe rests on brackets L on the side rods A of thelamp-frame, and a hood M rests on the top of the cylindrical globe. Thelower carbon at is pushed up through the hole in the plug H and pressesthe clamps J from each other more or less, according to the diameter ofthe carbon, and is then secured in the lower-carbon clamp B. The uppercarbon b is secured in the clamp 011 the lower end of the rod g in theusual manner.

The globe can easily be removed and opened or closed for trimming thelamp or cleaning the globe or glass chimney.

Ifind that loyburning the carbons in a chimney practically closed at thebottom the carbons burn much longer than when burned in the open, thelight is very steady, and less pieces and chips of carbon fly oif.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

1. In a globe for electric-arc lights, the combination with a glasschimney, of a metal ring surrounding the lower end of said chimney, acylindrical metal frame in the lower end of which said ring fits snuglyand a series of glass tubes, held longitudinally and side by 0 side insaid cylindrical frame, substantially as herein shown and described.

2. In a globe for electric-arc lights, the combination with a glasschimney of an apertured plug in the bottom of the same, spring-clamps insaid plug, a ring in which the lower end of the chimney is held, acylindrical frame fitenee of two Witnesses, this 27th day of Febtingsnugly on said ring and a series of glass ruary, 1896.

tubes held longitudinally and side by side in a l T said cylindricalframe, substantially as herein SALOMON HEIMAL 5 shown and described.\Vitnesses:

In testimony that I claim the foregoing as OSCAR F. GUNZ, my invention Ihave signed my name, in pres- N. M. FLANNERY.

